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Hey i have tried to patch the appleHDA so now i have just the Intel High Definition Audio on Audio (Built In).
I think i have to modified the three files to get sound.
Can you help me to configure the xml files ? on the first file that i have attached i put all that you need to create the xml file.
Gaetan.

Hello, i have an IDT 92HD75B3X5, i try to apply your tutorial but doesn't work.
No card detected.
I have attached a file with all step file and the final Kext AppleHDA.kext.
Can you see what is wrong ?
Thank you
AudioIDT92HD75B3X5.zip

When you install an system your Partition MBR was active on the last bootloader installed so you get the bootloader of windows 7 but windows 7 can't boot OSX so you have to re-active the bootloader of OSX normaly Chameleon
Do this :
Setting Your Partition "Active" Using Fdisk
Words in bold below are things you must type (followed by Enter).
1. Boot your Mac OS X install dvd
2. Once the installer is running, go to the Utilities menu and open Terminal
3. Determine which disk your MacOSX partition is on
Type diskutil list
Verify which disk number holds your partition (disk0, disk1, etc.)
4. Start using Fdisk
Assuming the MacOSX disk is the first disk ("disk0"), then
type fdisk -e /dev/rdisk0 <== use "rdisk" with your disk number here !!
Ignore the error "fdisk: could not open MBR file ..."
5. Determine which partition for MacOSX needs to be set "Active"
Type p
Verify which partition is for MacOSX (1, 2, 3, etc.)
6. Set the partition "Active"
Assuming it is partition 1, then
type f 1 <== use your partition number here !!
7. Save and exit
Type write
Type y (yes you are sure)
Type exit (to quit)
8. Remove the install DVD and reboot
So you can boot Windows 7 , XP and OSX
If your version of Chameleon is too old update it
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